
 body{
     margin: 0;
     scroll-padding: 0;
     background-image: url("../imgs/R-C.jpg");
 }
 div{
     position: relative;
     float: left;
 }
 #table_container{
     font-size: 20px;
     text-align:center;
     width:600px;
     height:500px;
     border:0px solid blue;
     margin-left: 80%;
     margin-top: 10%;
     background: rgba(255, 255, 255, .3);
     box-shadow: 3px 3px 6px 3px rgba(0, 0, 0, .3);
     border-radius:10px;

 }
 input{
     width: 300px;
     height: 30px;
     border-radius:8px;
 }
 #th_size{
    font-size: 40px;
 }
 .button{
     width: 300px;
     height: 50px;
     background-color: cornflowerblue;
     color: white;
     border:2px solid cornflowerblue;
     border-radius:8px;
 }
 .err_meg{
     color: red;
 }